![]() ![]() In contrast, the atob() function decodes a string that has been encoded using the Base64 format and returns it. The btoa() function returns a Base64 encoded ASCII string from a string of binary data, where each character represents an 8-bit byte. This works on almost all modern browsers such as Chrome, Firefox, Safari, Opera, and IE 10+. ![]() You can use btoa() and atob() functions, respectively for encoding and decoding Base64 strings. Example 4: This examples encodes the string VGhpcyBpcyBHZWVrc0ZvckdlZWtz by creating a Base64 object. Example 3: This examples encodes the string This is GeeksForGeeks by creating a Base64 object. Base64 is commonly used in a number of applications, including email via MIME and storing complex data in XML. The Cross-Browser Method is used as a JavaScript library to encode/decode a string in any browser. This is to ensure that the data remain intact without modification during transport. The btoa () method creates a Base64 -encoded ASCII string from a binary string (i.e. Each Base64 digit represents exactly 6-bits of data that means 3 bytes can be represented by 4 6-bit Base64 digits.īase64 encoding schemes are commonly used when there is a need to encode binary data that needs to be stored and transferred over media that are designed to deal with textual data. This post will discuss how to encode and decode strings in JavaScript with Base64 format.īase64 is a group of similar binary-to-text encoding schemes representing binary data in an ASCII string format by translating it into a radix-64 representation. ![]()
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